tomoyo_write_file(9)

💅 tomoyo_write_file — like, the whole Kernel API Manual moment, bestie 💅

okay so this is tomoyo_write_file(9) from the Kernel API Manual, and before you ask — yes, it's a kernel function, yes it's serious, and yes we're gonna make it make sense. 🎀

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✨ NAME ✨

tomoyo_write_file — update file related list. that's it, that's the vibe. a little update, a little list, a little file-related slay. 💖

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🌸 SYNOPSIS 🌸

int tomoyo_write_file (struct tomoyo_acl_param *param );

one function, one param, one return type. clean. iconic. no notes. ✨

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🦋 ARGUMENTS 🦋

• param — a pointer to "struct tomoyo_acl_param". yes bestie, it's a pointer, and yes it points at that exact struct. don't get cute and pass something else, i'm literally begging. 🙈

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💜 DESCRIPTION 💜

so here's the tea: it returns 0 on success, and a negative value otherwise. that's the whole contract — zero means we ate, negative means something went sideways. 😭

and the important part, the part you cannot skip, the part that's giving main character energy:

the caller holds tomoyo_read_lock. like, you, the caller. you're holding it. it's your responsibility. no cap. 🔥

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🫶 SEE ALSO 🫶

Kernel file ./security/tomoyo/file.c — and then the whole extended friend group, all of them, in order, no one gets left out:

• tomoyo_put_name_union(9)
• tomoyo_compare_name_union(9)
• tomoyo_put_number_union(9)
• tomoyo_compare_number_union(9)
• tomoyo_add_slash(9)
• tomoyo_get_realpath(9)
• tomoyo_audit_path_log(9)
• tomoyo_audit_path2_log(9)
• tomoyo_audit_mkdev_log(9)
• tomoyo_audit_path_number_log(9)
• tomoyo_check_path_acl(9)
• tomoyo_check_path_number_acl(9)
• tomoyo_check_path2_acl(9)
• tomoyo_check_mkdev_acl(9)
• tomoyo_same_path_acl(9)
• tomoyo_merge_path_acl(9)
• tomoyo_update_path_acl(9)
• tomoyo_same_mkdev_acl(9)
• tomoyo_merge_mkdev_acl(9)
• tomoyo_update_mkdev_acl(9)
• tomoyo_same_path2_acl(9)
• tomoyo_merge_path2_acl(9)
• tomoyo_update_path2_acl(9)
• tomoyo_path_permission(9)
• tomoyo_execute_permission(9)
• tomoyo_same_path_number_acl(9)
• tomoyo_merge_path_number_acl(9)
• tomoyo_update_path_number_acl(9)
• tomoyo_path_number_perm(9)
• tomoyo_check_open_permission(9)
• tomoyo_path_perm(9)
• tomoyo_mkdev_perm(9)
• tomoyo_path2_perm(9)
• tomoyo_same_mount_acl(9)
• tomoyo_update_mount_acl(9)

like, that's a squad. iykyk. 👑

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and that's the page, bestie 🍓 — brought to you by the good people over at ./security/tomoyo, dated October 2026, and signed tomoyo_write_file(9) with love. go hold that tomoyo_read_lock responsibly. mwah. 💋🧚‍♀️